Scale the ALPHA_THRESHOLD filter's region based on the device scale factor.

cc/quads/draw_quad_unittest.cc

Index: cc/quads/draw_quad_unittest.cc
diff --git a/cc/quads/draw_quad_unittest.cc b/cc/quads/draw_quad_unittest.cc
index f0f77190ffbe7c2d5f07d4b93aaf53f2baf4aa7f..cfacfd631c893831c81924a93d61651c77d1a0a1 100644
--- a/cc/quads/draw_quad_unittest.cc
+++ b/cc/quads/draw_quad_unittest.cc
@@ -334,6 +334,14 @@ void CompareDrawQuad(DrawQuad* quad,
     } \
     SETUP_AND_COPY_QUAD_ALL(Type, quad_all);
 
+#define CREATE_QUAD_9_NEW_1(Type, a, b, c, d, e, f, g, h, i, copy_a) \
+  scoped_ptr<Type> quad_new(Type::Create());                         \
+  {                                                                  \
+    QUAD_DATA quad_new->SetNew(                                      \
+        shared_state.get(), quad_rect, a, b, c, d, e, f, g, h, i);   \
+  }                                                                  \
+  SETUP_AND_COPY_QUAD_NEW_1(Type, quad_new, copy_a);
+
 TEST(DrawQuadTest, CopyCheckerboardDrawQuad) {
   gfx::Rect visible_rect(40, 50, 30, 20);
   SkColor color = 0xfabb0011;
@@ -407,11 +415,12 @@ TEST(DrawQuadTest, CopyRenderPassDrawQuad) {
   FilterOperations background_filters;
   background_filters.Append(
       FilterOperation::CreateGrayscaleFilter(1.f));
+  gfx::Vector2dF scale(1.f, 1.f);
 
   RenderPass::Id copied_render_pass_id(235, 11);
   CREATE_SHARED_STATE();
 
-  CREATE_QUAD_8_NEW_1(RenderPassDrawQuad,
+  CREATE_QUAD_9_NEW_1(RenderPassDrawQuad,
                       visible_rect,
                       render_pass_id,
                       is_replica,
@@ -420,6 +429,7 @@ TEST(DrawQuadTest, CopyRenderPassDrawQuad) {
                       mask_u_v_rect,
                       filters,
                       background_filters,
+                      scale,
                       copied_render_pass_id);
   EXPECT_EQ(DrawQuad::RENDER_PASS, copy_quad->material);
   EXPECT_RECT_EQ(visible_rect, copy_quad->visible_rect);
@@ -432,7 +442,7 @@ TEST(DrawQuadTest, CopyRenderPassDrawQuad) {
   EXPECT_EQ(filters, copy_quad->filters);
   EXPECT_EQ(background_filters, copy_quad->background_filters);
 
-  CREATE_QUAD_7_ALL_1(RenderPassDrawQuad,
+  CREATE_QUAD_8_ALL_1(RenderPassDrawQuad,
                       render_pass_id,
                       is_replica,
                       mask_resource_id,
@@ -440,6 +450,7 @@ TEST(DrawQuadTest, CopyRenderPassDrawQuad) {
                       mask_u_v_rect,
                       filters,
                       background_filters,
+                      scale,
                       copied_render_pass_id);
   EXPECT_EQ(DrawQuad::RENDER_PASS, copy_quad->material);
   EXPECT_EQ(copied_render_pass_id, copy_quad->render_pass_id);
@@ -753,11 +764,12 @@ TEST_F(DrawQuadIteratorTest, RenderPassDrawQuad) {
   FilterOperations background_filters;
   background_filters.Append(
       FilterOperation::CreateGrayscaleFilter(1.f));
+  gfx::Vector2dF scale(1.f, 1.f);
 
   RenderPass::Id copied_render_pass_id(235, 11);
 
   CREATE_SHARED_STATE();
-  CREATE_QUAD_8_NEW_1(RenderPassDrawQuad,
+  CREATE_QUAD_9_NEW_1(RenderPassDrawQuad,
                       visible_rect,
                       render_pass_id,
                       is_replica,
@@ -766,6 +778,7 @@ TEST_F(DrawQuadIteratorTest, RenderPassDrawQuad) {
                       mask_u_v_rect,
                       filters,
                       background_filters,
+                      scale,
                       copied_render_pass_id);
   EXPECT_EQ(mask_resource_id, quad_new->mask_resource_id);
   EXPECT_EQ(1, IterateAndCount(quad_new.get()));